2024 Map of Tyonek A-3 NE

About this map

Cook Inlet dominates the central portion of this coastal landscape, where the waters of the North Pacific meet the southern edge of the Matanuska-Susitna Borough. The shoreline is a complex network of mudflats and river mouths, notably where the Theodore River and Lewis River discharge into the inlet. Further inland to the northwest, the Beluga Highway provides a rare corridor of terrestrial access through the marshy lowlands surrounding the Chedatna Lakes. The map also illustrates the convergence of political boundaries, showing the line where the Matanuska-Susitna Borough meets the Kenai Peninsula Borough across the open water. This drainage pattern, including the Beluga River to the west, indicates a dynamic estuarine environment defined by tidal influence and glacial runoff.